According to the rumor mill, Warner Bros is still developing Justice League Dark and is considering Colin Farrell for the role of John Constantine.
It's taking a while, but DC Comics is slowly building up its superhero film line-up with Batman v Superman and Suicide Squad. But once those movies are finished, this cinematic universe might get a lot stranger thanks to Justice League Dark. Originally pitched by Guillermo del Toro, Justice League Dark would bring together John Constantine, Swamp Thing, Etrigan the Demon, and other magical superheroes to fight threats which the Justice League could not. While del Toro is no longer attached, Warner Bros. is still developing the project based on characters included in his original script. And if the latest rumors are accurate, Warner Bros. has a few specific actors in mind, including Fantastic Beasts and Where to Find Them's Colin Farrell as John Constantine.
If Justice League Dark is completed, it would be the third live-action version of John Constantine we've seen in almost a decade. Keanu Reeve's Constantine made drastic changes to the iconic magician, but all things considered, it was still a really fun supernatural action film. More recently, Matt Ryan returned the character to his roots on NBC's Constantine, and continues his performance on the set of Arrow.
According to sources at Latino Review, both Colin Farrell and Ewan McGregor have been approached for Constantine's role. Both would offer strong performances, but I have to admit, a blonde-haired Farrell in a trenchcoat could absolutely pull of Constantine's look. But Farrell might still have a Justice League Dark position if Constantine doesn't work out: These same sources add the actor who doesn't get the role could play as Jason Blood, Etrigan's human host.
No other lead character has been cast, but there are certainly several other interesting prospects. Guillermo del Toro originally wanted Ron Pearlman to take on Swamp Thing, and hopefully Dark's current producers agree. Spectre's Monica Bellucci is apparently a strong candidate for the fortune-telling Madame Xanadu. Sources have also stated that Warner Bros. wants a comedic presence for the ghostly Deadman, and a hispanic or black actress for the powerful mage Zatanna.
Of course, all these casting decisions are fully in deniable rumor territory until Warner Bros. provides an official statement. All the same, the very possibility that Vertigo's characters would appear together on theater screens is intriguing, and one we'll pay close attention to in the coming months.